diff options
Diffstat (limited to 'src/dabInputMpegFile.cpp')
-rw-r--r-- | src/dabInputMpegFile.cpp | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/src/dabInputMpegFile.cpp b/src/dabInputMpegFile.cpp deleted file mode 100644 index 6f24f32..0000000 --- a/src/dabInputMpegFile.cpp +++ /dev/null @@ -1,170 +0,0 @@ -/* - Copyright (C) 2009 Her Majesty the Queen in Right of Canada (Communications - Research Center Canada) - */ -/* - This file is part of ODR-DabMux. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "dabInputMpegFile.h" -#include "dabInputFile.h" -#include "mpeg.h" - -#include <stdio.h> -#include <errno.h> -#include <string.h> - - -#ifdef HAVE_FORMAT_MPEG -# ifdef HAVE_INPUT_FILE - - -struct dabInputOperations dabInputMpegFileOperations = { - dabInputFileInit, - dabInputFileOpen, - dabInputSetbuf, - dabInputFileRead, - nullptr, - nullptr, - dabInputMpegFileRead, - dabInputMpegSetbitrate, - dabInputFileClose, - dabInputFileClean, - dabInputFileRewind -}; - - -int dabInputMpegFileRead(dabInputOperations* ops, void* args, void* buffer, int size) -{ - dabInputFileData* data = (dabInputFileData*)args; - int result; - bool rewind = false; -READ_SUBCHANNEL: - if (data->parity) { - result = readData(data->file, buffer, size, 2); - data->parity = false; - return 0; - } else { - result = readMpegHeader(data->file, buffer, size); - if (result > 0) { - result = readMpegFrame(data->file, buffer, size); - if (result < 0 && getMpegFrequency(buffer) == 24000) { - data->parity = true; - result = size; - } - } - } - switch (result) { - case MPEG_BUFFER_UNDERFLOW: - etiLog.log(warn, "data underflow -> frame muted\n"); - goto MUTE_SUBCHANNEL; - case MPEG_BUFFER_OVERFLOW: - etiLog.log(warn, "bitrate too high -> frame muted\n"); - goto MUTE_SUBCHANNEL; - case MPEG_FILE_EMPTY: - if (rewind) { - etiLog.log(error, "file rewinded and still empty " - "-> frame muted\n"); - goto MUTE_SUBCHANNEL; - } else { - rewind = true; - etiLog.log(info, "reach end of file -> rewinding\n"); - lseek(data->file, 0, SEEK_SET); - goto READ_SUBCHANNEL; - } - case MPEG_FILE_ERROR: - etiLog.log(alert, "can't read file (%i) -> frame muted\n", errno); - perror(""); - goto MUTE_SUBCHANNEL; - case MPEG_SYNC_NOT_FOUND: - etiLog.log(alert, "mpeg sync not found, maybe is not a valid file " - "-> frame muted\n"); - goto MUTE_SUBCHANNEL; - case MPEG_INVALID_FRAME: - etiLog.log(alert, "file is not a valid mpeg file " - "-> frame muted\n"); - goto MUTE_SUBCHANNEL; - default: - if (result < 0) { - etiLog.log(alert, - "unknown error (code = %i) -> frame muted\n", - result); -MUTE_SUBCHANNEL: - memset(buffer, 0, size); - } else { - if (result < size) { - etiLog.log(warn, "bitrate too low from file " - "-> frame padded\n"); - memset((char*)buffer + result, 0, size - result); - } - result = checkDabMpegFrame(buffer); - switch (result) { - case MPEG_FREQUENCY: - etiLog.log(error, "file has a frame with an invalid " - "frequency: %i, should be 48000 or 24000\n", - getMpegFrequency(buffer)); - break; - case MPEG_PADDING: - etiLog.log(warn, - "file has a frame with padding bit set\n"); - break; - case MPEG_COPYRIGHT: - etiLog.log(warn, - "file has a frame with copyright bit set\n"); - break; - case MPEG_ORIGINAL: - etiLog.log(warn, - "file has a frame with original bit set\n"); - break; - case MPEG_EMPHASIS: - etiLog.log(warn, - "file has a frame with emphasis bits set\n"); - break; - default: - if (result < 0) { - etiLog.log(alert, "mpeg file has an invalid DAB " - "mpeg frame (unknown reason: %i)\n", result); - } - break; - } - } - } - return result; -} - - -int dabInputMpegSetbitrate(dabInputOperations* ops, void* args, int bitrate) -{ - //dabInputFileData* data = (dabInputFileData*)args; - if (bitrate == 0) { - char buffer[4]; - - if (ops->readFrame(ops, args, buffer, 4) == 0) { - bitrate = getMpegBitrate(buffer); - } else { - bitrate = -1; - } - ops->rewind(args); - } - if (ops->setbuf(args, bitrate * 3) != 0) { - bitrate = -1; - } - return bitrate; -} - - -# endif -#endif |